Oil stocks: ONGC, Oil India, BPCL, IOCL decline after windfall tax on crude petroleum slashed to zero UpstoxPetrol, Diesel To Become Cheaper? Windfall Tax On Crude Petroleum Slashed To Zero Zee NewsWindfall tax: ONGC, Oil India shares in focus today. Here’s why Business TodayGovernment Reduces Windfall Taxes On Crude Oil To Zero NDTV Profit Oil stocks: ONGC, Oil India, BPCL, IOCL decline after windfall tax on crude petroleum slashed to zero UpstoxPetrol, Diesel To Become Cheaper? Windfall Tax On Crude Petroleum Slashed To Zero Zee NewsWindfall tax: ONGC, Oil India shares in focus today. Here’s why Business TodayGovernment Reduces Windfall Taxes On Crude Oil To Zero NDTV Profit Top stories – Google News